What is the cheapest airline that flies from Ontario to Duluth Intl?

United Airlines and Delta are the most popular carriers operating from Ontario to Duluth Intl

When did momondo last update prices for flights from Ontario Airport to Duluth Intl Airport?

Prices for flights from Ontario Airport to Duluth Intl Airport were last updated today.

How old do you have to be to fly from Ontario Airport to Duluth Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Duluth Intl Airport.

What documentation or ID do you need to fly to Duluth Intl Airport?

The travel and health documents required for your trip to Duluth Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Duluth Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$298 Cheap Flights from Ontario to Duluth in 2025/26

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0 bags

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Find the cheapest flights from Ontario to Duluth

Round-trip

One-way

Cheap round-trip flights

5:50 pm - 11:07 amONT-DLH

15h 17m2 stops

8:05 am - 10:38 pmDLH-ONT

16h 33m2 stops

$522Delta

Find Deal

Wed, Mar 11 - Sat, Mar 14

10:30 pm - 11:07 amONT-DLH

10h 37m2 stops

8:05 am - 10:38 pmDLH-ONT

16h 33m2 stops

$552Delta

Find Deal

Wed, Mar 11 - Sat, Mar 14

8:16 pm - 10:45 amONT-DLH

12h 29m2 stops

11:20 am - 10:52 pmDLH-ONT

13h 32m2 stops

$607United Airlines

Find Deal

Sun, Sep 28 - Thu, Oct 2

8:16 pm - 10:45 amONT-DLH

12h 29m2 stops

3:07 pm - 10:30 pmDLH-ONT

9h 23m1 stop

$639United Airlines

Find Deal

Sun, Sep 28 - Thu, Oct 2

6:36 pm - 10:45 amONT-DLH

14h 09m2 stops

3:07 pm - 10:30 pmDLH-ONT

9h 23m1 stop

$692United Airlines

Find Deal

Mon, Sep 29 - Fri, Oct 3

6:36 pm - 10:45 amONT-DLH

14h 09m2 stops

11:20 am - 8:24 pmDLH-ONT

11h 04m2 stops

$697United Airlines

Find Deal

Mon, Sep 29 - Fri, Oct 3

5:05 am - 9:59 pmONT-DLH

14h 54m2 stops

3:06 pm - 10:31 pmDLH-ONT

9h 25m1 stop

$737United Airlines

Find Deal

Sat, Nov 22 - Fri, Nov 28

7:00 am - 9:59 pmONT-DLH

12h 59m1 stop

3:06 pm - 10:31 pmDLH-ONT

9h 25m1 stop

$778United Airlines

Find Deal

Sat, Nov 22 - Fri, Nov 28

7:02 am - 6:37 pmONT-DLH

9h 35m1 stop

3:07 pm - 10:30 pmDLH-ONT

9h 23m1 stop

$782United Airlines

Find Deal

Sun, Sep 28 - Thu, Oct 2

7:02 am - 6:37 pmONT-DLH

9h 35m1 stop

3:07 pm - 10:30 pmDLH-ONT

9h 23m1 stop

$806United Airlines

Find Deal

Mon, Sep 29 - Fri, Oct 3

United Airlines flights from Ontario to Duluth

Our best United Airlines deals on Ontario to Duluth flight tickets

United Airlines

Sep 28

ONT8:16 pmOntario

12h 29m

2 stops

DLH10:45 amDuluth Intl

Oct 2

DLH11:20 amDuluth Intl

13h 32m

2 stops

ONT10:52 pmOntario

$607

Find similar

United Airlines

Sep 28

ONT8:16 pmOntario

12h 29m

2 stops

DLH10:45 amDuluth Intl

Oct 2

DLH3:07 pmDuluth Intl

9h 23m

1 stop

ONT10:30 pmOntario

$639

Find similar

United Airlines

Sep 29

ONT6:36 pmOntario

14h 09m

2 stops

DLH10:45 amDuluth Intl

Oct 3

DLH3:07 pmDuluth Intl

9h 23m

1 stop

ONT10:30 pmOntario

$692

Find similar

Delta flights from Ontario to Duluth

Our best Delta deals on Ontario to Duluth flight tickets

Delta

Mar 11

ONT5:50 pmOntario

15h 17m

2 stops

DLH11:07 amDuluth Intl

Mar 14

DLH8:05 amDuluth Intl

16h 33m

2 stops

ONT10:38 pmOntario

$522

Find similar

Delta

Mar 11

ONT10:30 pmOntario

10h 37m

2 stops

DLH11:07 amDuluth Intl

Mar 14

DLH8:05 amDuluth Intl

16h 33m

2 stops

ONT10:38 pmOntario

$552

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Wed 3/11

5:50 pm-11:07 am

2 stops15h 17m

Duluth Intl

Sat 3/14

8:05 am-10:38 pm

2 stops16h 33m

$522

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Wed 3/11

10:30 pm-11:07 am

2 stops10h 37m

Duluth Intl

Sat 3/14

8:05 am-10:38 pm

2 stops16h 33m

$552

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sun 9/28

8:16 pm-10:45 am

2 stops12h 29m

Duluth Intl

Thu 10/2

11:20 am-10:52 pm

2 stops13h 32m

$607

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sun 9/28

8:16 pm-10:45 am

2 stops12h 29m

Duluth Intl

Thu 10/2

3:07 pm-10:30 pm

1 stop9h 23m

$639

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Mon 9/29

6:36 pm-10:45 am

2 stops14h 09m

Duluth Intl

Fri 10/3

3:07 pm-10:30 pm

1 stop9h 23m

$692

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Mon 9/29

6:36 pm-10:45 am

2 stops14h 09m

Duluth Intl

Fri 10/3

11:20 am-8:24 pm

2 stops11h 04m

$697

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 11/22

5:05 am-9:59 pm

2 stops14h 54m

Duluth Intl

Fri 11/28

3:06 pm-10:31 pm

1 stop9h 25m

$737

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sat 11/22

7:00 am-9:59 pm

1 stop12h 59m

Duluth Intl

Fri 11/28

3:06 pm-10:31 pm

1 stop9h 25m

$778

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Sun 9/28

7:02 am-6:37 pm

1 stop9h 35m

Duluth Intl

Thu 10/2

3:07 pm-10:30 pm

1 stop9h 23m

$782

OntarioDuluth

ONT - DLH

ONTDLH

Ontario

Mon 9/29

7:02 am-6:37 pm

1 stop9h 35m

Duluth Intl

Fri 10/3

3:07 pm-10:30 pm

1 stop9h 23m

$806

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Duluth

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Duluth?

The cheapest day to depart from Ontario to Duluth is on a Tuesday when prices can be found for as low as $287. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $737.

What is the cheapest time of day to depart on your flight to Duluth?

Flying to Duluth from Ontario in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $358 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to Duluth is in the morning when prices are around $531.

Can stopping save me money on Ontario to Duluth flights?

You could potentially save up to 37% on your flight if you consider stops on a Ontario to Duluth flight.

When to book flights from Ontario to Duluth

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Duluth according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Duluth (ONT to DLH) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Duluth

Direct flights	None

There are no direct flights from Ontario to Duluth. There are no popular flight routes from Ontario to Duluth.

Search flight deals

How far is Ontario to Duluth Intl by plane?
Duluth Intl is 1593.1 mi away from Ontario. Typically, this will take 9h 35m by plane in normal conditions.
When did momondo last update prices for flights from Ontario Airport to Duluth Intl Airport?
Prices for flights from Ontario Airport to Duluth Intl Airport were last updated today.
How old do you have to be to fly from Ontario Airport to Duluth Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The travel and health documents required for your trip to Duluth Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Duluth Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Duluth?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Duluth from Ontario.

Can I find flights from Ontario to Duluth with flexible booking policies on momondo?

All flight searches from Ontario to Duluth on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Duluth?

Once you have performed a search for Ontario to Duluth flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Ontario to Duluth right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Duluth flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.